Display device and method for selecting optical film of display device
US10890704B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jan 6, 2017 |
| Grant date | Jan 12, 2021 |
| Priority date | — |
| Expiry date | Jan 6, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2413/05
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
There is provided a display device exhibiting a good color reproducibility, even when observed through polarized sunglasses. A display device comprises a polarizer a and an optical film X on a surface on a light emitting surface side of a display element, wherein L1, which is the light incident vertically on the optical film X, among light incident on the optical film X from the display element side, satisfies a specific condition, and L2, which is the light emitting vertically from the light emitting surface side of the optical film X, and passing through a polarizer b having the absorption axis parallel to the absorption axis of the polarizer a, satisfies a specific condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.